Proceedings of the the 3rd Annual Conference of Engineering and Implementation on Vocational Education, ACEIVE 2019, 16 November 2019, Universitas Negeri Medan, North Sumatra, Indonesia

Research Article

The Influence of Pillar Form to Local Mechanism

Download356 downloads
  • @INPROCEEDINGS{10.4108/eai.16-11-2019.2293273,
        author={Sarra  Rahmadani and Syarvina  Syarvina},
        title={The Influence of Pillar Form to Local Mechanism},
        proceedings={Proceedings of the the 3rd Annual Conference of Engineering and Implementation on Vocational Education,  ACEIVE 2019,  16 November 2019, Universitas Negeri Medan, North Sumatra, Indonesia},
        publisher={EAI},
        proceedings_a={ACEIVE},
        year={2020},
        month={3},
        keywords={discharge local scour pillar},
        doi={10.4108/eai.16-11-2019.2293273}
    }
    
  • Sarra Rahmadani
    Syarvina Syarvina
    Year: 2020
    The Influence of Pillar Form to Local Mechanism
    ACEIVE
    EAI
    DOI: 10.4108/eai.16-11-2019.2293273
Sarra Rahmadani1,*, Syarvina Syarvina2
  • 1: Universitas Negeri Medan, Indonesia
  • 2: Universitas Sumatera Utara, Indonesia
*Contact email: sarra_ft@unimed.ac.id

Abstract

Basically, rivers have a dynamic flow character that often causes changes in flow morphology. The pillar is one form of water that can affect changes in flow patterns, because its presence obstructs river flow. Changes in flow patterns that occur can result in scouring around the pillars. The purpose of this study to determine the effect of a pillar of the local scour potential that occur around the pillar with the discharge, Q = 1.0 liter/ s and know the pattern and depth of scour around the pillar. The study was conducted on permanent uniform flow conditions with variations in the shape of the pillars. The pillar shape variations used are cylinder, rectangular and rectangular wide shape nose. The study was conducted at the Laboratory of civil engineering hydraulics, Universitas Sumatera Utara (USU), using a flume (length: 8 m, height: 0.3 m and width: 0.076 m). The material used in the form of sand, with model tested for 250 minutes for running. The observation results obtained the value of the maximum scour depth on the cylinder, rectangular and rectangular wide shape nose with discharge, Q = 1.0 liter/ s respectively are 25 mm, 30 mm, and 39 mm.